Limitaciones del parámetro Vs30 para la predicción del movimiento fuerte
DOI:
https://doi.org/10.21703/0718-2813.2024.35.2794Palabras clave:
Peligro sísmico probabilístico, Efecto de sitio, Limitaciones de Vs30Resumen
El parámetro Vs30, esto es, el promedio armónico de las ondas S en los 30 primeros metros de la superficie se ha usado extensivamente para modelar las condiciones locales de un sitio. Pero, diversos estudios han mostrado las deficiencias que este parámetro posee para predecir efectivamente el movimiento fuerte. En el presente estudio se comparan estimaciones de peligro sísmico no ergódicas con las mismas hechas considerando Vs30 para mostrar sus limitaciones. Se observa que, en general, para suelos duros, las estimaciones son parecidas, pero para suelos blandos, se observan grandes diferencias. Ello se acentúa para suelos con periodos sobre 1 s, considerando periodos de respuesta largos. Estos resultados reflejan que el parámetro Vs30 no logra capturar de buena manera el comportamiento de suelos con periodos largos.
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Esta obra está bajo una licencia internacional Creative Commons Atribución-NoComercial 4.0.
